Update android_sample_index.html

Author: Dynamsoft-Henry

_includes/android_sample_index.html

@@ -673,7 +673,7 @@ <h2>Download Demo</h2>
         <a href="https://play.google.com/store/apps/details?id=com.dynamsoft.demo.dynamsoftbarcodereaderdemo" target="_blank">
           <img src="../../assets/samples/google-play.svg" alt="Get it on Google Play" style="height: 50px; width: auto;">
         </a>
-        <a href="https://download2.dynamsoft.com/dbr/android/DynamsoftBarcodeReaderDemo.apk" target="_blank">
+        <a href="https://download2.dynamsoft.com/dbr/android/DynamsoftBarcodeReaderDemoAndroid.apk" target="_blank">
           <img src="../../assets/samples/download_apk.svg" alt="Download APK" style="height: 50px; width: auto;">
         </a>
       </div>